Gyge Cornalia & Panceri 1861

Key to species of Gyge Cornalia & Panceri, 1861 (based on characters of mature females; modified from Markham 2004) l. Body with indistinct anterolateral corners, subrectangular, margins of barbula projections smooth; internal ridge of oostegite 1 smooth.............................................................. G. angularis Page, 1985 [New Zealand] - Body smoothly rounded, oval; margins of barbula projections digitate; internal ridge of oostegite 1 digitate............. 2 2. Lateral margins on one side of body acutely angled........................ G. irregularis (Markham, 1985) [Thailand] - Lateral margins on both sides of body smooth.............................................................. 3 3. Marsupium fully enclosed by oostegites............................ G. branchialis Cornalia & Panceri, 1861 [Europe] - Marsupium not fully enclosed by oostegites................................................................ 4 4. Pleopods and uropods smooth, uropods visible in dorsal view................................ G. wimi sp. nov. [Iran] - Pleopods and uropods tuberculate, uropods not visible in dorsal view...... G. ovalis (Shiino, 1939) [Japan, Korea, Taiwan]